Takeda, Naoyuki, Osamu Terashima, Fumiya Kinoshita, Hideaki Touyama, and Shuho Yamada. “The Influence of Tennis Serve Kinematics on Ball Impact Sound and Post Impact Ball Speed and Spin”. International Journal of Racket Sports Science 6, no. 1 (November 5, 2024). Accessed December 12, 2024. https://journal.racketsportscience.org/index.php/ijrss/article/view/122.